Gaius Julius Caesar appears to be a man in his mid-twenties, However, his most defining trait is the fact that he is extremely overweight, an oddity amongst Heroic Spirits. He is always seen wearing a corona obsidionalis (grass crown). as well as a white skirt and a golden plated armour is added, protecting his volumous torso, with short red sashes attached to it, and a red cape with a white collar of fur appears on him as well.

Caesar's sword, Crocea Mors, is a golden sword with a cross-shaped hilt and guard, decorated with blue symbols. Said hilt is also blue and possesses a spherical jewel at its bottom.

Caesar does not regret his past life that was filled with the numerous trickeries he committed so long as he lives, even if those trickeries were what lead him to his death, now in Chaldea, he oftenly eats, flirts or has his usual banters with other kings and rulers, even masters.

"Now then, who is up for some drinks!." Everyone in the dining hall of Chaldea cheered.